Home / 3,479.29-5,213.36-2,782.28

Finding the Fourth Proportional to 3,479.29, 5,213.36 and 2,782.28

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Solution

The fourth proportional to 3,479.29, 5,213.36 and 2,782.28 is: 4,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.29 : 5,213.36 = 2,782.28 : x
  2. Step 2: Convert to fraction form
    3,479.29/5,213.36 = 2,782.28/x
  3. Step 3: Cross multiply
    3,479.29x = 5,213.36 × 2,782.28
  4. Step 4: Simplify right side
    3,479.29x = 14,505,047.25
  5. Step 5: Solve for x
    x = 14,505,047.25/3,479.29
  6. Step 6: Final answer
    x = 4,168.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.